ES6 - Boolean
Objek Boolean juga mewakili dua nilai "true" atau "false". Jika parameter nilai dihilangkan atau 0, -0, null, false, NaN, undefined, atau string kosong (""), objek memiliki nilai awal false.
Gunakan sintaks berikut untuk membuat file boolean object.
var val = new Boolean(value);
Properti Boolean
Berikut adalah daftar properti dari objek Boolean.
Sr Tidak | Deskripsi properti |
---|---|
1 | constructor Returns a reference to the Boolean function that created the object. |
2 | prototype The prototype property allows you to add properties and methods to an object. |
Boolean Methods
Following is a list of the methods of Boolean object and their description.
Sr.No | Method & Description |
---|---|
1 | toSource() Returns a string containing the source of the Boolean object; you can use this string to create an equivalent object. |
2 | toString() Returns a string of either "true" or "false" depending upon the value of the object. |
3 | valueOf() Returns the primitive value of the Boolean object. |
In the following sections, we will take a look at a few examples to demonstrate the usage of the Boolean methods.